var img = new Array("beschreibung","ansichten","grundrisse","lageplan","betreuung","kontakt");
			
for (i=0;i<img.length;i++) {
	eval(img[i]+"_a=new Image(); "+img[i]+"_a.src=\"pics/menue/"+img[i]+"_a.gif\";");
	eval(img[i]+"_p=new Image(); "+img[i]+"_p.src=\"pics/menue/"+img[i]+"_p.gif\";");
}
	
function switchOn(imgName)  {if (document.images) eval('document["'+imgName+'"].src='+imgName+'_a.src');}
function switchOff(imgName) {if (document.images) eval('document["'+imgName+'"].src='+imgName+'_p.src');}

function getit() {
	var b = navigator.userAgent;
	var r = screen.width+"x"+screen.height;
	//alert("b: "+b+" r: "+r);
	//document.write("<input type=\"hidden\" name=\"b\" value=\""+b+"\"><input type=\"hidden\" name=\"r\" value=\""+r+"\">");
	document.form.b.value=b;
	document.form.r.value=r;
}

function mail_check(mailaddress) {
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	return filter.test(mailaddress);
}

function checkform(form) {
	var message = "Folgende Angaben sind unvollständig oder fehlerhaft:\n\n";
	var flag = true;

	if (!form.anrede[0].checked && !form.anrede[1].checked) {
		message += "Anrede: bitte wählen\n";
		flag = false;
	}
	if (form.name.value == "") {
		message += "Name: unvollständig\n";
		flag = false;
	}
	if (form.email.value == "" && form.telefon.value == "") {
		message += "Telefon oder eMail: unvollständig\n";
		flag = false;
	}
	else if ( (form.email.value != "") && (!mail_check(form.email.value)) ) {
		message += "eMail: fehlerhaft\n";
		flag = false;
	}
	if (form.message.value == "") {
		message += "Ihr Text: unvollständig\n";
		flag = false;
	}
	if (!flag) {
		alert(message);
		return flag;
	} else return flag;
}

function initWindow(desc,w,h,pic) {
	eval("window.setTimeout(\"winOpen('"+desc+"',"+w+","+h+",'"+pic+"')\",100)");
}

function winOpen(desc,w,h,pic) {
	var name = "bigpic";
	var url  = "bigpic.html";
	//w += 90;
	//h += 90;
	var addy = 40;
				
	var l = (screen.availWidth - (w+addy)) / 2;
	var t = (screen.availHeight -(h+addy)) / 2;
	
	window.open(url+"?desc="+desc+"&w="+w+"&h="+h+"&pic="+pic,name,"width="+(w+addy)+",height="+(h+addy)+",screenX="+l+",screenY="+t+",top="+t+",left="+l+",scrollbars=yes,resizable=yes");
}